data.table

Extension of Data.frame

Fast aggregation of large data (e.g. 100GB in RAM), fast ordered joins, fast add/modify/delete of columns by group using no copies at all, list columns and a fast file reader (fread). Offers a natural and flexible syntax, for faster development.

Author(s):
Version:
1.9.6
License:
GPL (>= 2)
Maintainer:
Matt Dowle <mattjdowle@gmail.com>
Vignettes:
datatable-faq.pdf datatable-intro.pdf

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Topics in manual of R package data.table

A
  • address
  • all.equal.data.table
  • as.data.table.xts
  • as.xts.data.table
  • assign
  • B
  • between
  • C
  • chmatch
  • copy
  • D
  • data.table
  • data.table-class
  • dcast.data.table
  • duplicated
  • F
  • foverlaps
  • frank
  • fread
  • I
  • IDateTime
  • J
  • J
  • L
  • last
  • like
  • M
  • melt.data.table
  • merge
  • N
  • na.omit.data.table
  • P
  • patterns
  • R
  • rbindlist
  • rleid
  • S
  • setattr
  • setcolorder
  • setDF
  • setDT
  • setkey
  • setNumericRounding
  • setorder
  • shift
  • subset.data.table
  • T
  • tables
  • test.data.table
  • timetaken
  • transform.data.table
  • transpose
  • truelength
  • tstrsplit
  • Documentation reproduced from package data.table, version 1.9.6, License:

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